The scientists at UNIST’s School of Natural Science in South Korea able to stack a very thin molybdenum disulfide semiconductor and top of a polyelectrolyte, which resulted in a luminous efficiency increase by four times.
The research team led by Professor Byung Soo Kim includes Prof. Ryu Soon-min at Pohang University of Science and Technology, and Prof. M. Chhowalla at Rutger University.
The large-scale nanometre sized light emitting structure was successfully fabricated by placing multiple layers of MoS2 films using layer-by-layer (LbL) assembly.
Prof. Kim says that "This discovery will become a major breakthrough in light-emitting display research." He adds "This newly-developed material will be put to good use in producing various products, like flexible displays and lightweight electronic devices."
This research findings is published in the September 29, 2014, version of Nano Letters.